Thanks. I solved the issue due to a conflict of rules in the 4g wireless router. I have another question regarding port triggering feature.is it the same as port forwarding ?

I did some checks using Maintenance->Diagnostics: 1. When i connect Robustel#1 to WAN#1, it shows "WAN1 : WAN is online". When I connect Robustel#2 to WAN#2, it shows "WAN 2: Online detection failed"...

I have 2 robustel 4G routers #1, #2. I configure 2 WAN interfaces on ER5120 WAN#1 and WAN#2 I connect robustel #1 to WAN#1 of ER5120 and i can ping from ER5120 to robustel#1 and vice versa. But when...

@Virgo already setup the DMZ. tried port forwarding but just realised my isp don't issue public Ip address anymore

I want to setup ER5120 behind 2 robustel 4G routers as follows: 1. 4G router #1: eth0 port 192.168.0.1 => WAN port ER5120 (interface #1) 192.168.0.10 (self assigned static IP) 2. 4G router #2: eth0...